90281982 has 32 divisors (see below), whose sum is σ = 213018624. Its totient is φ = 24962400.

The previous prime is 90281957. The next prime is 90281993. The reversal of 90281982 is 28918209.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 90281982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33369 + ... + 35972.

It is an arithmetic number, because the mean of its divisors is an integer number (6656832).

Almost surely, 2^90281982 is an apocalyptic number.

90281982 is an abundant number, since it is smaller than the sum of its proper divisors (122736642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90281982 is a wasteful number, since it uses less digits than its factorization.

90281982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69384.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 90281982 is about 9501.6831140593. The cubic root of 90281982 is about 448.6080146598.

The spelling of 90281982 in words is "ninety million, two hundred eighty-one thousand, nine hundred eighty-two".